1313615052 has 36 divisors (see below), whose sum is σ = 3344428360. Its totient is φ = 434719872.

The previous prime is 1313615029. The next prime is 1313615057. The reversal of 1313615052 is 2505163131.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1313615057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126253 + ... + 136260.

Almost surely, 2^1313615052 is an apocalyptic number.

1313615052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313615052 is an abundant number, since it is smaller than the sum of its proper divisors (2030813308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313615052 is a wasteful number, since it uses less digits than its factorization.

1313615052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262662 (or 262657 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1313615052 is about 36243.8277779817. The cubic root of 1313615052 is about 1095.1897538171.

Adding to 1313615052 its reverse (2505163131), we get a palindrome (3818778183).

The spelling of 1313615052 in words is "one billion, three hundred thirteen million, six hundred fifteen thousand, fifty-two".